selftests: rtnetlink: try concurrent change of ifalias

to make sure this is serialized correctly.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 0 deletions

diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh
index 62c87da92770..e8c86c416ed0 100755
--- a/tools/testing/selftests/net/rtnetlink.sh
+++ b/tools/testing/selftests/net/rtnetlink.sh
@@ -278,6 +278,12 @@ kci_test_ifalias()
                 ip link show "$devdummy" | grep -q "alias $namewant"
                 check_fail $?
 
+                for i in $(seq 1 100); do
+                        uuidgen > "$syspathname" &
+                done
+
+                wait
+
                 # re-add the alias -- kernel should free mem when dummy dev is removed
                 ip link set dev "$devdummy" alias "$namewant"
                 check_err $?